Side frame for car-trucks.



Patnted Dec. I2, |899.

w, P.. BETTENnonF. SIDE FRAME FORCAR TRUGKS,v

(Application led Feb. 15, 1897.)

(N o M o d el.)

ll rTn STATES PATENT Trina.

lVILLIAM P. BETTENDORF, OF DAVENPORT, IOVA.

SIDE FRAME FOR CAR-TRUCKS.

SPECIFICATION forming part of Letters Patent No. 638,902, dated December12, 1899. Application filed February 15, 1897. Serial No. 623,390. (Nomodel.)

T0 @ZZ whom it may concern:

Be it known that I, WILLIAM l?. BETTEN- DORF, a citizen of the UnitedStates, and a resident of Davenport, in the county of Scott and State ofIowa, have invented certain new and useful Improvements in Side Framesfor Oar-Trucks, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings and to theletters of reference marked thereon.

The object of my invention is to make a side frame for car-trucks out ofone piece of metal and which will be light and strong and durable. ThisI accomplish by taking acornmercial form of beam and cutting awayportions of its web and then binding the upper resulting arms at eachend downward to the lower resulting arms and suitably connecting them toform a truss-shaped side frame and otherwise complete the same, with theexception of the journal-boxes and other mi-V nor details, substantiallyas hereinafter fully described, and as illustrated in the drawings, inwhich- Figure l is a blank cut from the commercial form of beam, fromwhich said side frame is made. Fig. 2 is a side view of my invention.Fig. 3 is a longitudinal horizontal secv tion through the centralportion of the side frame, taken on dotted line 3 3, Fig. l. Fig. 4. isavertical transverse section taken on dotted line 44, Fig. l. Fig. 5 isa vertical section through the center of length of the upper flange ofthe blank, taken on dotted line 5 5, Fig. 2; and Fig. 6 is a similarView of the corresponding part of completed side frame, as shown in Fig.l.

In the drawings, A represents a blank, which is made by taking anI-b'eam, preferably, of commercial size, and cutting away its websubstantially in the following manner, to wit: At the center of lengthof the beam an oblong opening a is cut in the web, which extends fromnear the lower llange to a point preferably nearer the upper iiange.-

The vertical side edges of this opening are cut so as to leave aseriesof two or more lugs Z2, although the drawings show four on each side,and the lower horizontal edge of this opening a is out so as to providea series of lugs, the central one c of which, as shown in the drawings,is longer than the lugs c c' on each side of it. The web of the -beam isalso cut away in a corresponding manner on each side of said centralopening a to the ends thereof, so as to leave practically an upper and alower arm d and e, respectively, at each end of the blank, the formerofwhich is slightly longer than the latter. Near the extremities ot thesearms the web is preferably entirely cut away for a correspondingdistance, so as to leave an upper and a lower clip-bar cl and e at eachend of the side fram e, between which the j ourn al-boxes are secured,as will hereinafter more fully appear. At `the root of these clip-barsand between said bars and the vertical edge of the cut-away portionnearest opening ct of the blank the arms cl and e are each provided withinwardly-projecting web portionsf and f', the projection f of the upperarms d extending obliquely downward and toward the adjacent end of theblank and with its end edge at right angles to its oblique sides and theprojection f of the lower arm of the blank extending upward, with itsouter edge perpendicular to the lower flange and with its upper edge atright angles thereto.

In converting the blank into a finished side frame the upper arms CZ ofthe bla-nk. are bent downward until the end edges of the projectionsfmeet and bear against the upper edge of the projection f of the lowerarm, whereupon they are welded or otherwise suitably secured togetherand the upper clip-bars d' bent parallel to the lower clip-bars. vTheportion of theflange and web of the beam bounding the upper side ofopening a is upset, so as to make it iiatter and broader underneath andto give it a longitudinal stiening-rib on the upper side, as shown inFig. 6. Thus constructed the buffer-plate w, connecting the upperflanges of the I-beams of the truck-bolster y, will not be sheared intwo, as it would be likely to do did it strike directly against the edgeof the web remaining after cutting the opening a in the blank A. Incompleting the side frame the lugs Z) on each side of opening a are bentlaterally, each alternate one being bentinward and the other outward.In. cutting these lugs b I prefer to punch a rivet-hole h through eachof them, so that when bent laterally a vertical guideplate B B can beriveted to said lugs on each 'side of said opening a, so as to enter thegrooves of the guide-blocks X, secured to the ends of the truck-bolster,and direct the vertical movement thereof.

The lug c when it is cut is preferably provided with three rivet-holes,as shown, and the lugs c each with one rivet-hole, and when completingthe side frame lug c is bent horizontally outward and lugs c' inward,and the end of the spring-plank of the truck is inserted through openinga and rests on and is secured to lugs c and c by rivets or otherwise.

The journal-boxes D to be used in conj unction with my improved sideframes are of any suitable design and are of such dimensions that theyfit snugly between the upper and lower clip-bars d and c at each end ofthe frame. The side of the journal-box facing the center of length ofthe side frame is provided with two lugs g g, one of which is riveted tothat part of the web of the frame which in the blank constituted theprojection f and the other of which is riveted to the part of the blankhereinbefore referred to as proj ection f The side of the journal-boxesopposite that from which lugs g project has two knuckles 7c 7c, made integrant with and projecting therefrom, down through which a verticalbolt E, whose ends extend through the bars df c', passes.

Thus constructed I provide a durable side frame for car-trucks whichpossesses the advantages of a truss, yet is subject to none of theshearing strain to which a truss proper, with its numerous elements, issubject. I do-not wish, however, to be confined to the exactconstruction of either the blank or the side frame as hereinbeforedescribed or shown. The clip-bars, for instance, might be omitted, aslikewise the lugs l) and c c', and a cheaper form of side frame madeembodying the principal features of my invention, which consists ofmaking a central opening in a suitable form of beam, the removing ofportions of the web, so as to leave two arms at each end of t-he blank,and the bending of the arms until they meet and then uniting them.

What I claim as new isl. A blank for side frames for car-trucks,consisting of a beam having a central opening, and portions of the webremoved from the ends thereof to near said central opening to formsuitable arms, substantially as and for the purpose set forth.

2. A blank for side frames for car-trucks, consisting of a beam having acentral opening, and having portions of its web cutaway from the endsthereof to near said central opening to form suitable arms withclip-bars extending from the extremities thereof.

3. A side frame for car-trucks made from a metal beam the web at thecenter of length of which is cut away to form an opening in combinationwith abolster the ends of which rest in said .openings and journal-boxesse: cured to the ends of said beam.

et. A side frame for car-trucks made from a metal beam portions of theweb at each end of which are cut away so as to leave arms which are bentso as to meet and are united together to give a truss shape to the sideframe, in combination with journal-boxes secured to the ends thereof. 4

5. A side frame for car-trucks made from a metal beam portions of theweb at each end of which are cut away so as to leave arms, withclip-bars extending from their extremities, which said arms are bentuntil they meet and are united together, in combination with suitablejournal-boxes.

6. A side frame for car-trucks made from a meta-l beam the web of whichat its center of length is cut away, and portions of the web at each endof which are cut away leaving arms which are so bent as to meet and areunited together, in combination with the truck-bolster andjournal-boxes.

7. A side frame for car-trucks made from a metal beam having an openingat its center of length made by cutting away a portion of the webthereof, and having portions of the web at each end cut away to formarms which are provided at their extremities with clipbars: said armsbeing so bent as to meet and be united together in combination withjournal-boxes secured between said clip-bars.

S. Side frames for car-trucks consisting of a metal beam, which in theblank had portions of its web removed at each end so as to leave armsthat in the finished frames are so bent as to meet and are unitedtogether, and said frames being provided with an oblong opening .attheir centers of length the vertical side edges of which are providedwith a series of lugs that are bent laterally, in combination withjournal-boxes secured to the ends of said frames, guide-plates securedto the lugs projecting from the vertical sides of central opening, andthe truck-bolster the guide-blocks on the ends of which engage saidguide-plates, as set forth.

9. Side frames for car-trucks consisting of a metal beam, which in theblank had portions of its web removed at each end so as to' leave armsthat in the finished frames are so bent as to meet and are unitedtogether, and said frames being provided with a rect-angular opening attheir centers of length, the lower edgebf which is provided with lugsthat project laterally, in combination with journalboxes secured to theends of said frames, spring-plank connecting said frames and having itsends secured to said lugs, and the truck-bolster having its ends enterand cushioned in said central openings, as set forth.

WILLIAM BETTENDORF.

Witnesses:

W. H. Fonansr, FRANK D. THoMAsoN.

IIO

